[patch, fortran] Bug 81296 - derived type I/o problem

[Jerry DeLisle]

Hi all,

The attached patch adds a check for the format label containing a "DT" format 
descriptor and enables the generation of the correct code.  The patch modifies 
an existing test case as a future check on this.

Regression tested on x86_64-linux.

OK for trunk and backport to 7?

Regards,

Jerry

2017-08-21  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR fortran/81296
	* trans-io.c (get_dtio_proc): Add check for format label and set
	formatted flag accordingly. Reorganize the code a little.
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